Billiard ball rack



FIG. 1 is a front and top perspective view of a billiard ball rack showing my new design;

FIG. 2 is a rear and top perspective view thereof;

FIG. 3 is a front and bottom perspective view thereof;

FIG. 4 is a rear and bottom perspective view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevation view thereof;

FIG. 8 is a left side elevation view thereof;

FIG. 9 is a front elevational view thereof; and,

FIG. 10 is a rear elevation view thereof. 

The ornamental design for a billiard ball rack, as shown and described. 